Why was the T-rex afraid to go to the library? Because his books were 65 million years overdue! Why are elephants wrinkled? Does lightning smell? Who would live in a house built from aluminum cans? The answers to these and other key questions can be found here. This jam-packed collection contains more than 1,000 jokes, riddles, optical illusions, brainteasers, and info nuggets that make children laugh out loud as they learn more about the world around them. In addition to laughs galore, each page offers intriguing facts about amazing animals, wild weather, nutty inventions, the human body, homes, monster mysteries, things in the sky, and things in the sea. From the tiniest mouse to the largest elephant, from knock-knock jokes to the invention of the first toothbrush, from humans that fly to birds that can't, the book provide hours of entertainment for inquiring young minds. Dianne Eastman's witty artwork adds additional giggles and food for thought throughout.